Cross cultural adaptation, reliability and validity of the Persian version of COVID-۱۹ Preventive Measures questionnaire at the radiation therapy center in Yazd, Iran

Background: Due to the crowds of people in radiation therapy centers and the importance of not interrupting the treatment process, preventive measures to deal with COVID-۱۹ is one of the most important measures; therefore, this study aimed to evaluate the intercultural compatibility, reliability and validity of COVID-۱۹ prevention measures in a radiation therapy center. Methods: This analytical cross-sectional study was performed with ۲۰ personnel at the radiation therapy center of Yazd, Iran, using a census method in September ۲۰۲۱. A ۲۹ items COVID-۱۹ prevention scale was used as measurement tool. First, cultural adaptation was performed and then face validity was determined by calculating the Impact Score. Content validity was assessed by calculating the content validity ratio (CVR) and content validity index (CVI) and reliability was determined using the Test-Retest method and Kuder–Richardson (KR۲۰) alpha coefficient and calculating intra-class correlation coefficient (ICC). All analyses were performed in SPSS software version ۲۴ with a significance level of ۵%.   Results: ۳۰% (۶ people) were male and ۷۰% (۴۰ people) had   less than ۱۵ years of work experience. Four items of the questionnaire were removed based on the minimum Lawshe's CVR values, as their CVR was less than ۰.۶۲. Finally, the Kuder Richardson coefficient, Scale-level CVI, and ICC were ۰.۸۲۷, ۰.۹۸, and ۰.۵۲, respectively. Conclusion:  The validity and reliability of the questionnaire were confirmed; therefore, this Persian version of ۲۵-item scale is proposed as a suitable and effective tool for COVID-۱۹ prevention measures in Persian language countries.

کلیدواژه ها:

COVID-۱۹ ، Radiotherapy ، Validity and Reliability